194234633 has 4 divisors (see below), whose sum is σ = 194441988. Its totient is φ = 194027280.

The previous prime is 194234611. The next prime is 194234657. The reversal of 194234633 is 336432491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 336432491 = 31 ⋅10852661.

It can be written as a sum of positive squares in 2 ways, for example, as 78198649 + 116035984 = 8843^2 + 10772^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194234633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194234593 and 194234602.

It is not an unprimeable number, because it can be changed into a prime (194234603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102266 + ... + 104147.

It is an arithmetic number, because the mean of its divisors is an integer number (48610497).

Almost surely, 2^194234633 is an apocalyptic number.

It is an amenable number.

194234633 is a deficient number, since it is larger than the sum of its proper divisors (207355).

194234633 is an equidigital number, since it uses as much as digits as its factorization.

194234633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207354.

The product of its digits is 46656, while the sum is 35.

The square root of 194234633 is about 13936.8085658087. The cubic root of 194234633 is about 579.1293248207.

The spelling of 194234633 in words is "one hundred ninety-four million, two hundred thirty-four thousand, six hundred thirty-three".